There are most likely no direct flights on the San Diego — Denver route
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from San Diego to Denver. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
The minimum one-way ticket price from San Diego to Denver is $20 (December 2026), while the maximum is $215 (October 2026). On average, a ticket costs $118–$215.
A non-stop flight is the most convenient and comfortable way to fly from San Diego to Denver, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
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There are most likely no direct flights on the San Diego — Denver route
San Diego — Denver
12/09/2026
Departure
Direct flight
AS3155
starting at $166
San Diego — Denver
10/29/2026
Departure
Direct flight
UA2476
starting at $314
The route San Diego — Denver is served by several airlines: Alaska Airlines, United Airlines, and Frontier Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $52 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.
The cheapest flight ticket from San Diego to Denver according to data for the last 48 hours costs $52
Often the best time to buy tickets from San Diego to Denver is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from San Diego to Denver can be found flying in these months: December, October.
The fastest flights from San Diego to Denver start from 2 hours 34 minutes in the air.
The following airlines operate direct flights on the route San Diego — Denver: Alaska Airlines, United Airlines
We couldn't find any special offers for flights from San Diego to Denver
The cheapest one-way flight from San Diego to Denver departs on 12/09/2026, is operated by Frontier Airlines and costs $52
The cheapest roundtrip flight from San Diego to Denver departs on 10/22/2026, is operated by Alaska Airlines and costs $304
Fastest flight from San Diego to Denver takes 2h 34m
There are direct flights on this route 2 days a week: We and Th
The distance between San Diego and Denver is 1340km (831 miles). There are 149 direct flights from San Diego to Denver. The time difference between San Diego and Denver is 1h. Flights from San Diego begin at 6:15 AM. The latest flight from San Diego departs at 9:15 PM